随着地下水开采量的增加，区域地面沉降漏斗将不断扩大。
With the increasing of underground water over withdrawing, regional ground subsidence funnels will be expanded.
地面沉降速率受岩土体类型的影响，沉降漏斗与粘性土地层厚度的分布基本是一致的；
The speed rate of Land subsidence is influenced by soil type, so the distribution of subsidence funnel accounts with that of the clay soil thickness;
三者由于近年来中国许多城市因地下水抽取过多，产生地下水漏斗，进而引发不均匀的沉降，影响到塔吊的运营和施工。
Three in recent years, many city Chinese due to excessive extraction of groundwater, produce groundwater funnel, causing uneven settlement, affect the operation and construction of the tower crane.
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